Upper work cabinet



FIG. 1 is a front and left side perspective view of an upper work cabinet, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof; the opposite side thereof is identical thereto;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a front and left side perspective view with the screen panel leaning forward. 

The ornamental design for an upper work cabinet, as shown and described. 